Daily Bulletin

How to avoid deleting data when transferring files

April 29, 2021

Accidentally deleting data can ruin your whole day and then some. One key to avoiding this is to double- or triple-check that you have not specified the same files as both source and destination before you execute a transfer.

When using the Globus web interface to transfer files, for example, activate the sync option in the Transfer & Sync Options menu. Sync can be set to allow a file transfer only if the file does not exist on the destination, if there’s a difference in checksum or file size, or if the source copy is newer than the destination copy. If you use the Globus command line interface, include the --verify-checksum and --sync-level checksum options when executing a transfer command.

Review this documentation for additional cautions and instructions for using Globus to transfer files.